What Causes Engine Noise During Cold Start of the Encore?

1 Answers
VonJaxson
07/30/25 4:09am
The reasons for engine noise during cold start of the Encore are as follows: Hydraulic Tappets: Due to low oil pressure or wear in the hydraulic tappets themselves, air enters the hydraulic tappets, causing noise. Valve Clearance: Wear in the valve rocker arms leads to excessive valve clearance. Carbon Canister Solenoid Valve Operation Sound: This is a normal sound and can continue to be used. If the sound is too loud, it is recommended to have it checked at a 4S shop. Three-Way Catalytic Converter: If there is noise within half a minute after a cold start, which then disappears, this is usually the sound of the three-way catalytic converter expanding after heating up.
Was this review help?
11
0
Share
More Forum Discussions

How to Set the Date on a Ford Focus?

Ford Focus date setting method is: 1. First turn the key to position 2, then toggle the adjuster downward until "set" appears on the instrument panel, then press the set button; 2. Toggle the adjuster downward until the indicator stops at "clock"; 3. Press the set button; 4. Now you can use the adjuster to move upward or downward to set the year, press set after adjustment, then continue setting month, hour, and minute - press set after each adjustment; 5. After completing all adjustments, press set, then select "exit" downward to return. Taking the 2020 Ford Focus as an example, it belongs to the compact car category with body dimensions of: length 4378mm, width 1810mm, height 1468mm, wheelbase 2705mm, fuel tank capacity 53l, and curb weight 1242kg.
12
4
Share

Should the Clutch Be Depressed When Braking?

Depress the clutch when braking. The correct procedure is: 1. First apply the brake. 2. Wait until the vehicle speed significantly decreases before engaging the clutch, which prevents stalling. If the clutch is engaged before braking, the braking distance will increase, potentially leading to accidents in emergency situations. Additional information: 1. During idle conditions, the engine's power is only sufficient to overcome internal resistance, with no excess power output, so there's no need to worry about its traction. 2. When braking with the throttle at its minimum, the engine operates at idle with lower crankshaft speed while the vehicle speed remains relatively high. The inertia force pushes the engine crankshaft to accelerate, and the resistance generated by the engine's compression stroke counteracts this inertial torque, creating a reverse torque that helps decelerate the vehicle, providing auxiliary braking effect.
6
2
Share

Can outdoor charging piles be used in the rain?

Charging piles are made of waterproof materials, but it is recommended not to charge during rainy weather. Some people worry that the charging interface may short-circuit due to rain. This concern is reasonable, as even if manufacturers use insulating materials at the charging interface, charging in the rain can still pose risks. Additional information: 1. Charging pile monitoring: Most charging piles use SMC fiberglass materials, ensuring long-term outdoor use and resistance to complex weather conditions. Moreover, modern charging piles are internet-connected, allowing real-time monitoring of each pile's operational status through a backend system. If any issues or malfunctions occur, alerts can be received immediately, ensuring charging safety. 2. Waterproof capability: During the construction of charging piles, waterproof materials are applied to the base. This ensures the lower 20-30 cm of the charging pile body is flood-resistant. National standards for the waterproof performance of charging piles are very strict. Before charging starts, both the vehicle side and the pile side must undergo insulation testing. If the insulation test fails (due to rain or debris), charging cannot be initiated.
7
1
Share

How many points are deducted for touching the line during parallel parking?

Parallel parking with the vehicle body touching the line results in a deduction of 100 points. The deduction standards for parallel parking are as follows: 1. After the vehicle is parked in the space: if the vehicle body crosses the line, it is considered a failure. 2. If the wheels touch or press the lane boundary line during movement: 10 points are deducted. 3. If the vehicle is not parked within the designated space: it is considered a failure. 4. If the left turn signal is not turned on when starting: 10 points are deducted. 5. If the right turn signal is not turned on when reversing: 10 points are deducted. 6. If the vehicle stops midway: it is considered a failure. Parallel parking is part of the driving test's Subject 2. Relevant information about Subject 2 is as follows: 1. Subject 2: Also known as the small road test, it is part of the motor vehicle driver's license assessment and refers to the field driving skills test. 2. For small vehicles C1 and C2, the test items include five mandatory components: reversing into a parking space, parallel parking, stopping and starting on a slope, turning at a right angle, and driving along a curve.
3
5
Share

Where is the air intake for the Audi Q5L's air conditioning located?

Audi Q5L's air conditioning intake is located on the right side of the drainage channel under the front hood. You need to remove the drainage channel cover to see it. How to turn on the air conditioning in an Audi: For cooling, simply press the AUTO button and adjust to the desired temperature. However, when the outside temperature is high, do not press the ECON button next to it, otherwise no matter how much you lower the temperature, the air conditioning will only blow natural air and not cool. For cooling, press the AUTO button. To turn off the air conditioning, simply turn off the fan. How to adjust the temperature in an Audi's air conditioning: The most obvious are the two knobs on the left and right, which control the temperature on each side respectively; the OFF button at the top left is the fan switch; the AC button controls the cooling operation mode switch, which can turn the cooling compressor on and off, and is also the switch for blowing cold air inside the car. The button at the bottom left is the switch for the interior air circulation mode, which helps improve air quality inside the car; the two buttons in the middle adjust the blower speed, with the left for lower speed and the right for higher speed, adjustable between 0 and 4 levels to prevent window fogging and ensure air flow inside the car. Below the blower adjustment buttons is an AUTO button for automatic air conditioning control. The three buttons on the right from top to bottom represent three air blowing modes: air blowing from the front windshield vents, blowing upwards, and blowing downwards. At the very bottom of the panel, there are four buttons: three-level heating for the driver's seat, defrosting and defogging for the front windshield and side windows, heating and defrosting for the rear windshield, and three-level heating for the passenger seat.
19
3
Share

What is Car Detailing?

Car detailing refers to the maintenance and care of various parts of a vehicle using different car care products and application techniques, tailored to the specific material requirements of each component. Originating from Western developed countries, it is known as "Car-Care" in English. Car detailing includes: car washing, exterior paint care, interior cleaning, and refurbishment of other car parts. 1. Exterior Detailing: Mainly includes: high-pressure car washing, rust removal, tar and asphalt removal, waxing and color enhancement with mirror finish treatment, new car wax removal; wheel rims, tires, bumper refurbishment, and undercarriage anti-corrosion coating; waxing, glazing, coating, etc. Benefits: Regular washing prevents paint and body parts from being corroded by pollutants. Timely waxing maintains the shine of the car's color and provides a certain level of protection. 2. Interior Detailing: Includes cleaning of the engine, trunk, dashboard, ceiling, carpets, floor mats, seats, seat covers, sun visors, and door linings, as well as steam sterilization, deodorizing of air vents, and air purification inside the car. Engine detailing includes: engine washing and cleaning, application of gloss protectant, refurbishment, and cleaning of the three filters (fuel filter, oil filter, air filter). 3. Paint Treatment: Mainly includes: oxidation film treatment, overspray removal, acid rain treatment, paint scratch repair, paint damage repair, and full-body repainting. Benefits: Paint treatment can restore minor scratches on the car and better protect the body. 4. Car Protection: Mainly includes: applying explosion-proof solar films, installing anti-theft devices, static electricity dischargers, and car voice alarm systems. Benefits: These devices help eliminate potential safety hazards in daily car use. 5. Other Care: Tire Maintenance: Care for tires and rims. Professional treatment can effectively slow down aging, extend service life, and ensure driving safety. Glass Care: Professional treatment not only improves the transparency of the glass but also enhances water repellency and anti-fog effects. Headlight Cover Care: Removes the oxidation layer from car headlight covers, increases transparency, and extends their service life.
11
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.